ZooKeeper

For a simple single-server installation, install ZooKeeper on any server that is IP accessible
from all Midolman agents (for example: on the CLC host machine itself). You can also cluster
ZooKeeper for fault tolerance. See MidoNet NSDB ZooKeeper Installation.

Enable and start the ZooKeeper service before installing the other MidoNet services.

Cassandra

MidoNet uses Apache Cassandra to store flow state information.

For a simple single-server installation, install Cassandra on any server that is IP accessible
from all Midolman agents (for example: on the CLC host machine itself). You can also cluster
Cassandra for fault tolerance. See MidoNet NSDB Cassandra Installation.

Enable and start the Cassandra service before installing the other MidoNet services.